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We modify the anomalous hydrodynamic equations of motion to account for dissipative effects due to QCD sphaleron transitions. By investigating the linearized hydrodynamic equations, we show that sphaleron transitions lead to nontrivial…

高能物理 - 唯象学 · 物理学 2023-09-06 Lillian de Bruin , Sören Schlichting

Recent studies show that for central collisions the rising of the incident energy from AGS to RHIC decreases the value of the chemical potential in the Hadron-QGP phase diagram. Thus, the formation of QGP at RHIC energies in central…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Delfino , J. B. da Silva , M. Malheiro , M. Chiapparini , M. E. Bracco

We report on a scaling behaviour in the transverse momentum ($p_{T}$) distributions for charged hadrons produced in proton-proton ($pp$) collisions with different center of mass energies ($\sqrt{s}$ = 0.9, 2.76 and 7 TeV) at the Compact…

高能物理 - 唯象学 · 物理学 2014-09-11 W. C. Zhang , C. B. Yang

The amount of axial charge produced in heavy ion collisions is one of the key quantities in understanding chiral magnetic effect. Current phenomenological studies assume large axial charge chemical potential $\mu_5$ produced in Glasma phase…

核理论 · 物理学 2018-07-11 Shu Lin , Li Yan , Gui-Rong Liang

Background: The chiral magnetic effect (CME) is extensively studied in heavy-ion collisions at RHIC and the LHC. An azimuthal correlator called $R_{\Psi_{m}}$ was proposed to measure the CME. By observing the same $R_{\Psi_{2}}$ and…

核理论 · 物理学 2021-04-07 Yicheng Feng , Jie Zhao , Hao-jie Xu , Fuqiang Wang

We extend our previous investigation of the effects of pre-hydrodynamic evolution on final-state observables in heavy-ion collisions to smaller systems. We use a state-of-the-art hybrid model for the numerical simulations with optimal…

We explore the system size dependence of heavy-quark-QGP interaction by studying the heavy flavor meson suppression and elliptic flow in Pb-Pb, Xe-Xe, Ar-Ar and O-O collisions at the LHC. The space-time evolution of the QGP is simulated…

高能物理 - 唯象学 · 物理学 2021-12-08 Shu-Qing Li , Wen-Jing Xing , Xiang-Yu Wu , Shanshan Cao , Guang-You Qin

We discuss chiral separation effect in the systems with spatial non - homogeneity. It may be caused by non - uniform electric potential or by another reasons, which do not, however, break chiral symmetry of an effective low energy theory.…

高能物理 - 理论 · 物理学 2020-11-04 M. Suleymanov , M. A. Zubkov

We investigate the effect of electrical charge on collisions of hydrodynamically interacting, micron-sized water droplets settling through quiescent air. The relative dynamics of charged droplets is determined by hydrodynamic interactions,…

流体动力学 · 物理学 2022-06-22 G. Magnusson , A. Dubey , R. Kearney , G. P. Bewley , B. Mehlig

In this work, the charge transfer fluctuation which was previously used for $pp$ collisions is proposed for relativistic heavy-ion collisions as a QGP probe. We propose the appearance of a local minimum at midrapidity for the charge…

高能物理 - 唯象学 · 物理学 2009-11-11 Lijun Shi , Sangyong Jeon

The chiral magnetic effect (CME) is an exact statement that connects via the axial anomaly the electric current in a system consisting of interacting fermions and gauge field with chirality imbalance that is put into a strong external…

高能物理 - 唯象学 · 物理学 2020-04-17 L. Ya. Glozman

The exclusive vector meson production cross section is one of the most promising observables to probe the high energy regime of the QCD dynamics. In particular, the squared momentum transfer ($t$) distributions are an important source of…

高能物理 - 唯象学 · 物理学 2017-04-05 V. P. Goncalves , F. S. Navarra , D. Spiering

We study the effects of hadronic rescattering on hadron distributions in high-energy nuclear collisions by using an integrated dynamical approach. This approach is based on a hybrid model combining (3+1)-dimensional ideal hydrodynamics for…

核理论 · 物理学 2015-10-20 Shiori Takeuchi , Koichi Murase , Tetsufumi Hirano , Pasi Huovinen , Yasushi Nara

Gauge fields provide the fundamental interactions in the Standard Model of particle physics. Gauge field configurations with nontrivial topological windings are known to play crucial roles in many important phenomena, from…

高能物理 - 唯象学 · 物理学 2023-04-10 Anping Huang , Shuzhe Shi , Shu Lin , Xingyu Guo , Jinfeng Liao

We investigate the vector-current correlation Pi_{mu nu} (VCC) in the presence of a strong external magnetic field (B_0 in the z direction) at low temperature (T<T^chi_c) with C- and CP-violations, indicated by the nonzero chiral-chemical…

高能物理 - 唯象学 · 物理学 2014-11-20 Seung-il Nam

The chiral magnetic effect (CME) is a highly discussed effect in heavy-ion collisions stating that, in the presence of a magnetic field B, an electric current is generated in the background of topologically nontrivial gluon fields. We…

高能物理 - 理论 · 物理学 2013-01-29 Ingo Kirsch , Tigran Kalaydzhyan

We postulate that non-perturbative QCD effects occurring during parton fragmentation can result in collective effects of a multi-parton system, reminiscent of those observed in high-energy hadronic or nuclear interactions with large…

高能物理 - 唯象学 · 物理学 2023-06-26 Austin Baty , Parker Gardner , Wei Li

The system size dependence of dihadron azimuthal correlations in ultra-relativistic heavy ion collision is simulated by a multi-phase transport model. The structure of correlation functions and yields of associated particles show clear…

核理论 · 物理学 2014-11-18 S. Zhang , Y. H. Zhu , G. L. Ma , Y. G. Ma , X. Z. Cai , J. H. Chen , C. Zhong

High-energy partons lose energy while propagating through the hot, strongly interacting medium produced in ultrarelativistic nucleus-nucleus collisions, leading to a suppression of particle production at high transverse momentum…

核实验 · 物理学 2026-02-27 CMS Collaboration

Heavy-ion collisions at the LHC provide the conditions to investigate regions of quark-gluon plasma that reach higher temperatures and that persist for longer periods of time compared to collisions at the Relativistic Heavy Ion Collider.…

核理论 · 物理学 2021-08-04 Scott Pratt , Christopher Plumberg